Smart will bring the 88g/km Smart ForTwo cdi to the UK next year, with production starting in February.

The two-seater features a Mercedes-Benz developed three cylinder diesel engine with 45bhp, claimed to have the lowest emissions of any car on sale worldwide.

Capable of 85.6mpg on the combined cycle, this gives it a range of 670 miles between top-ups, equivalent to the distance from Dover to Prague.

Prices and specification for the diesel model will be available closer to the launch.